SteerMouse is an advanced driver for USB and Bluetooth mice. It also supports Apple Mighty Mouse very well.
SteerMouse can assign various functions to buttons that Apple’s software does not allow, including double-clicks, modifier clicks, application switching, assignment of shortcut keys, “snap to” cursor movement, which moves the cursor to target (such as an OK button), and more.
SteerMouse lets you control the cursor’s Sensitivity on top of the Tracking Speed. (Apple’s software only allows adjustment for the Tracking Speed.) By adjusting both configurations, you can customize the ideal setting for the cursor to fit the movements of your hand.

What’s New in Version 5.0.1:

・Problem solved where an error would occur after a reboot
・Problem solved where buttons would stop working if you turned on auto-snapping
・Problem solved where modifier keys of keyboard shortcuts would get stuck
・Now shows correct direction in the Scroll tab even if scroll direction is natural